Pneumatic cushion wheel



June 28' 1927.

J. B. KERR ET AL PNEUMATIC CUSHION WHEEL Filed June 18, 1926 2 Sheets-Sheet 1 4 amveufou,

r I o June 28,1927. 1,633,748

J. B. K/ERR ET AL PNEUMATIC CUSHION WHEEL Filed June is. 1926 g Sheets-Sheet 2 amoemfow $3: 7/ I I I, .7

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Patented June 28, 1927.

UNITED, STATES PATENT OFFICE.

JOHN BOBBY KERR AND JACOB R. YOUNG, F ALBUQUERQUE, NEW MEXICO.

PNEUMATIC CUSHION WHEEL.

Application filed June 18, 1926. Serial No. 116,929.

This invention relates to cushion tires and tended beyond the felloe to engage the rim aims to provide a cushion tire construction which will have resilient qualities equal to the usual pneumatic tire now in common use.

An important object of the invention s to provide a tire of this character wherein the inner tube is eliminated, novel means being provided for pneumatically cushioning the tread of the tire from a point remote from the tire tread.

7 With the foregoing and other objects 1n view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and 111 the details of construction hereinafter described and claim-ed, it being understood that changes in the precise embodiment of the invention herein disclosed, may. be made within the scope of What is claimed, without departing from the spirit of the invention.

Referring to the drawings: Figure 1 is a fragmental view illustratlng a wheel constructed in accordance with the 2 broken away.

Figure 2 is a sectional 2--2 of Figure 1.

Figure 3 is a sectional view taken on line 3-3 of Figure 1. I

Figure 4 is a sectional view taken on line i l of Figure 1.

Figure 5 is asectional view taken on line 55 of Figure 1.

Referring to the drawings in detail, the reference character 5 indicates the central portion of the wheel which is supplied with the usual hub 6. I

The central section includes an air and oil chamber 7 that is surrounded by the circular member 8 that has a plurality of hollow spokes 9 extending therefrom. The felloe, which is indicated at 10 is secured to the outer ends of the spokes 9 as clearlyshown by Figure 1 of the drawings, which felloe is supplied with openings to accommodate the bolts 11 that pass through the securing clips 12 arranged on opposite sides of the felloe, which clips have portions thereof exview taken on line invention, one of the sides thereof being sections-13 as clearly shown by Figure 4.

Mounted on the rim 18 is a tire shoe 14 which is of the usual construction. Disposed within the shoe 14 are the heads 15 which are constructed to conform to the contour of the inner surface of the tire adjacent to the tread portion thereof, each head being supported at the outer end of a plunger 16, which plungers extend through the felloe 10 and through the hollow spokes 9, the inner ends of the plungers extending into the chamber 7 where they are supplied with heads 17 held to the plungers, by means of the cotter keys 18. I

In order that air-tight connections will be had between the plungers 16 and the spokes, rings 19 are supplied on the plungers.

The central portion of the wheel is closed by means of the plate 20 which is secured to the wheel by means of the bolts 21 that extend through the member 8, the inner portion of the plate 20 being secured to the hub 6 by means of the bolts 22.

From the foregoing it will be obvious that due to the constructionshown and described, any pressure exerted exteriorly of the shoe 14, willtend to force the head 15 and plunger 16 supporting the same, disposed adjacent to the point where pressure is exerted inwardly, forcing the head 17thereof against the .air pressure in the chamber 7. As soon as the pressure on the exterior of the shoe 14; has been relieved, it will be obvious that the air pressure within the air chamber 7 will act to return the plunger and head 15 to its initial position. It will thus be seen that the action of the plungers against the air within chamber 7 will lend resiliency to the tire shoe equal to that of a pneumatic tire.

We claim:

'In a cushion wheel, an inner hollow section having integral spokes, said spokes being hollow, the inner section having openings communicating with the hollow spokes, plates secured to the inner section and providing a housing with the inner section,

plungers operating through the hollow tioned, and said heads operating in fluid 10 spokes, means on the plungers for providing contained in the housing to restrict 1noVefluid-tight connections between the plungers lnent of the phingers.

and walls of the hollow spokes, heads on In testimony that we claim the forethe inner ends of the plungers and opergoing as our own, we have hereto affiX-ed our ating between the plates, a telloe having signatures.

openings, secured to the spokes, shoes on the outer ends of the plungers, a tire on JOHN BOBBY KERR.

the felloe and in which the shoes are posi- JACOB R. YOUNG. 

